Home / 123,221.18-170,045.56-66,632.58

Finding the Fourth Proportional to 123,221.18, 170,045.56 and 66,632.58

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Solution

The fourth proportional to 123,221.18, 170,045.56 and 66,632.58 is: 91,953.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,221.18 : 170,045.56 = 66,632.58 : x
  2. Step 2: Convert to fraction form
    123,221.18/170,045.56 = 66,632.58/x
  3. Step 3: Cross multiply
    123,221.18x = 170,045.56 × 66,632.58
  4. Step 4: Simplify right side
    123,221.18x = 11,330,574,380.34
  5. Step 5: Solve for x
    x = 11,330,574,380.34/123,221.18
  6. Step 6: Final answer
    x = 91,953.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.